Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6-3-166 found under Kit Rotor Vane by Stewart And Stevenson Power Products. The National Stock Number assigned to this part is 2990012272533, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6-3-166.